MODEM NOT WORKING

Hi<br> <br> I bought a brand new modem on 26/09/2015 at vodacare canal walk century city after my old one just stop working all of a sudden. I was told the old modem was bended and cant be replaced so I pay r359 for a brand new one. Only to find out on Sunday 2 November my new one is doing the same thing. Stop working. I took it in to vodacom promenade on Wednesday. The manager explain to me now it can't be exchange even though it still new, it must go in for repair. I must now sit without internet for the next 2 months. Why? Its a brand new it only work for a month an a few days, surely it must be a factory fault. I want my modem replace immedaitely. I'm a master student who are using the internet for my studies. Further more why must I now suffer under vodacom rules and regulations. i can exchange it by Somerset Mall or Canal Walk but all a sudden they are out of stock. When they sell it to me there was plenty stock. I want the service that I paid for. I paid for a fully function modem thats what I want immediately.<br> Thanks<br> Veronica<br> ***